USA TODAY | Fragrance Expert Sue Phillips Uses “Scent Healing” to Help People with Loss of Smell

As one of the five senses, the sense of smell is incredibly important in daily life, helping us detect whether food is spoiled, as well as alert us of several dangerous situations, such as smoke from a fire or a gas leak. Smell is special, since it is the only sense that bypasses the brain's sensory relay system, instead going directly to the cortex for processing. It is also theorized that smell, as a form of chemoreception, is one of the earliest senses to evolve in primitive multicellular animals.  

Read: Fragrance Expert Sue Phillips Uses “Scent Healing” to Help People with Loss of Smell